London's Pulse: Medical Officer of Health reports 1848-1972
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Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
Hackney 1972
[Report of the Medical Officer of Health for Hackney]
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| Stoke Newington | Thames derived | Coppermills | |
|---|---|---|---|
| Number of samples | 104 | 364 | 52 |
| Ammoniacal Nitrogen | 0.014 | 0.031 | 0.019 |
| Albuminoid Nitrogen | 0.050 | 0.069 | 0.100 |
| Nitrate Nitrogen | 7.9 | 6.9 | 8.9 |
| Oxygen abs. from KMn04 4 hrs. at 27°C | 0.70 | 1.06 | 1.36 |
| Hardness (total) Caco3 | 308 | 274 | 309 |
| Hardness (non-carbonate) Ca003 | 80 | 82 | 96 |
| Magnesium as Mg | 5.5 | 5.0 | 6.0 |
| Sodium as Na | 28.8 | 24.5 | 34.6 |
| Potassium as K | 5.1 | 5.5 | 7.3 |
| Chloride as C1 | 42 | 35 | 50 |
| Phosphate as PO4 | 2.1 | 2.8 | 4.0 |
| Silicate as S102 | 10 | 10 | 10 |
| Sulphate as SO4 | 52 | 58 | 72 |
| Natural Fluoride as F | 0.15 | 0.15 | 0.17 |
| Surface-active material asManoxol 0T | 0.02 | 0.02 | 0.02 |
| Turbidity units | 0.1 | 0.1 | 0.1 |
| Colour (Burgess units) | 9 | 13 | 14 |
| pH Value | 7.8 | 7.9 | 7.9 |
| Electrical Conductivity (microhms) | 640 | 570 | 680 |
SWIMMING BATHS
Regular routine samples are taken of the water in the four Public
Swimming Baths in the Borough, and no action was necessary in respect of the
23 taken for chemical and bacteriological examination during the year.
FLUORIDATION
The Council (3/12/69) resolved as follows:-
"That having considered Department of Health and Social Security Circular
8/69 and the request of the Secretary of State to give further consideration
to the fluoridation of water, this Council calls upon the Secretary of State
to recognise the impossibility of securing unanimity among the Health
Authorities in the area of the Metropolitan Water Board, and requests him to
take this matter out of the Local Government arena and to introduce legislation
to implement the recommendations contained in the report entitled 'Fluoridation
Studies in the United Kingdom and the Results Achieved After Eleven
Years' .
At a meeting on 16th December 1970 on a motion proposed by a member,
the Council resolved as follows:-
In view of consideration now being given at all levels to different
aspects of Government and public consultation, and the fact that the public